Reed-organ.



PATENT OFFICE.

WILLIAM F. BULTM'ANN, OF ELGIN, ILLINOIS.

REED-ORGAN.

Specification of Letters Patent.

Patented Sept. 24, 1907.

Application filed August 31,1906. erial N0. 332,860.

To all whom it "may concern:

Be it known that l, \Vrrrrrnxn 1 BUL ANN, a citizen oi the United States, residing at Elgin, in the county oi Kane and State or lllinois, have invented certain new and usel'ul Improvements in Reed-Organs, oi which the lollowing is a specification.

This invention. relates to improvements in the construction and arrangement of the reed cells of organs or similar musical instruments. The particular improvements that term the subject matter oi this application i'or patent, relate to the invention in reed organs patented August 27, 1805, to Wm. Seybold, No. 545100. As will appear from said patent, the invention covered thereby, embodies in combination with the main or reed cells, auxiliary or resonance cells, which are in permanent corrmiunication with the reed cells. Said invention consists lurther in providing independent sets ol' n'rutes lor the reed cells and the resonance cells. in said patented invention, it has been found the construction is del'ective in that it is necessary to open the rrrutes ol the reed cells as well as the mutes oi the auxiliary cells in order to get the desired results. it has also been iound that in said construction, the volume of sound is limited owing to the small capacity ol the reed cells, the presence of dead walls and the limited means of corrrrrrunication between the latter and the resonance cells or chambers. My invention overcomes these objections and secures positive advantages, as will herein-alter appear.

Referring to the accompanying drawing, which forms a part oi this applicationz-Figure 1 is a perspective view oi a portion of the reed cells and sound board of an organ embodying my invention with parts removed and blOliCli away, to more clearly disclose the construction; Fig. is a vertical cross section through the reed-cells.

Referring to the details ol the drawing:3 represents an organ reed board of ordinary construction, in which are provided the air passages 18 iortho reeds 19 which are secured by screws 20 to the plates 17, and have the usual bent or vibrating portion 21. For each reed there is a reed cell 8, and between each pair of reed cells, is vertical partition (5, in which an open- 'rg 12 is cut opposite the heel portion of the reed. Arranged between every two vertical partitions (i, is a partition 9 which has no opening therein. Between the vertical partitions are transverse partitions 7 which extend horizontally for a portion ol the length of the reed cell and about midway its top and bottom walls and then extend upwardly as at 7 to the board 5 which lornrs the top oi the reed cell. In the horizon tal portion of each. partition 7, is termed a rectangular opening 11, and in the vertical portion 7 is a circular opening 10. Each partition 7, 7 with the walls (3 and 9, 'l'orm an auxiliary or resonance cell 8 within the cell 8, the front end of which is adapted to be closed by a mute 15, which is hinged at 16 to the top 5. It will thus be seen that there are, as in the Seybold invention, two sets 01' cells, one designated as reed cells and lettered 8, and the other as the auxiliary or resonance cells, and lettered S. It will also be seen that there are two passage-ways l'ronr the auxiliary cells to the reed cells, nan1ely:the openings 10 and 11, respectively. For each pair ol reed cells, I prefer to provide one auxiliary cell, in communication therewith.

'lhe reed cells are provided with a mute 13, in the usual manner, and it may be opened or lelt closed depending on the results desired.

By extending the partition 7 for" approximately only one-hall oi the length of the reed cell, I provide a reed cell of greater section above the toe or vibrating por tion of the reed, in which. to conduct the air to the reed, the result of which is an increased volume oi sound, and the ability to produce the tones of a pipe organ of relatively great volume. With this construction, it is also possible to close the mute 13 as shown in Fig. 2, and draw the air for the reeds entirely through the auxiliary cells 8, a condition not possible in the Seybold construction.

It will be noted that the openings 10 are of dil'l'ererrt sizes and the area oi same will be governed by the can pacity of the respective reeds; and it will also be noted that air entering the reed cells through the openings 11, will descend at the heel oi the reed, while the air entering said cells through the openings 10 will descend near the toe of the reed. It has been found that this arrangement effects the desired vibration oi the reeds and produces the best results.

Having described my invention, I clainr:

1. ln an organ. :1 reed-board having a plurality oi chamlr therein, each of said chambers being divided by verliiczrl and horizontal walls into a reed-cell and a resonance cell, the latter occupying the lj'orward and upper portion of the chamber, said resonance cell having communication through said walls with the reed-cell, in combination with separate mutes tor the reed cells and the resonance cells.

In an or in, a reedboar'd having a plurality of chamhers, each olf rr'd chambers being divided by a horizontal and a vertical partition, into a reed cell and a resonance cell, said partitions having openings therein whereby communication ell'ected between the recd-cells and the resonance cells, in combination with separate rnutes for the rced cells and resonance cells.

2:1. in an organ, :1 reed-board having a. plurality of charm arranged in communicating pairs, each chamber being subdivided into a r'eed'cell and a resonance cell and provided with a plurality of openings between said cells, in combination with separate mutes for the series of reedcells and the series of resonancecells.

In testimony whereof I :rllix my signature in presence oi two witnesses.

WILLIAM F. BULTMANN.

Witnesses ltonrur'r ACKERHAN, Mirntrriir HELPER. 

